Title: Stenbolone
CAS Registry Number: 5197-58-0
CAS Name: (5a,17b)-17-Hydroxy-2-methylandrost-1-en-3-one
Additional Names: 2-methyl-5a-androst-1-en-17b-ol-3-one; 2-methyl-17b-hydroxy-5a-androst-1-en-3-one; stenobolone (rescinded USAN)
Molecular Formula: C20H30O2
Molecular Weight: 302.45
Percent Composition: C 79.42%, H 10.00%, O 10.58%
Literature References: Preparation of free alcohol and acetate: R. Mauli et al., J. Am. Chem. Soc. 82, 5494 (1960); Kaspar et al., DE 1096356 (1961 to Schering AG), C.A. 55, 27440b (1961); R. E. Counsell et al., J. Org. Chem. 27, 248 (1962); GB 925849 (1963 to Syntex).
Properties: Crystals from acetone + hexane, mp 155-158°. [a]D +52° (chloroform) (Mauli). [a]D26 +47° (chloroform) (Counsell). uv max (95% ethanol): 241 nm (log e 3.99).
Melting point: mp 155-158°
Optical Rotation: [a]D +52° (chloroform); [a]D26 +47° (chloroform)
Absorption maximum: uv max (95% ethanol): 241 nm (log e 3.99)
Derivative Type: Acetate
CAS Registry Number: 1242-56-4
Molecular Formula: C22H32O3
Molecular Weight: 344.49
Percent Composition: C 76.70%, H 9.36%, O 13.93%
Properties: Crystals from acetone + hexane, mp 146-149°. [a]D +32° (chloroform) (Mauli). [a]D26 +60° (chloroform) (Counsell). uv max (95% ethanol): 241 nm (log e 4.03).
Melting point: mp 146-149°
Optical Rotation: [a]D +32° (chloroform); [a]D26 +60° (chloroform)
Absorption maximum: uv max (95% ethanol): 241 nm (log e 4.03)
NOTE: This is a controlled substance (anabolic steroid): 21 CFR, 1308.13, as defined in 1300.01. |